injector question
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Joined: Aug 2009
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From: newport news va.
Car: 92 firebird gta
Engine: L98 with minor mods.
Transmission: 700r4
Axle/Gears: 3.23
injector question
I have a 92gta l98 I had to replace the stock injectors because they were bad, the question is this. I replaced them with the stock replacement bosch type III's about 4 momths ago I have checked the fuel presure it's good (around 33psi while running If I unplug the vac line 42 psi. I have changed the o2, Iac valve, tps is new and set at .58. the fuel filter is new. the car surges when it idles like it is running lean. the plugs have almost no color like there not getting enough fuel.Is there some cars like mine that just don't work well with bosch type III's or are the injectors faulty? Any help would be helpful!!!!!
Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: injector question
Last edited by vetteoz; Dec 28, 2010 at 06:18 AM.
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From: Elm City, NC
Car: 87 IROC Z
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
Re: injector question
Surging at idle can also be a vacuum leak. When you replaced the injectors, did you make sure all of the vacuum lines were hooked back up?
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